I wonder whether it is possible to reuse and modify the code (Python and Apps) for deployments in the education industry, or even in other fields with similar unsatisfied needs. Should I contact somebody about this point?

The work already make here is astounding! I plan to get involved in the community!

Yes, Blockcerts is free to use, copy, and modify as you need. Please be sure to share your solution back here so it can be amplified and help others learn from your example. Attribution is also good to help build a standards-based approach around this project. Thanks!